Matched or Paired Samples · Exercise 16

DIRECTIONS: For each of the word problems, use a solution sheet to do the hypothesis test. The solution sheet is found in Appendix E. Please feel free to make copies of the solution sheets. For the online version of the book, it is suggested that you copy the.doc or the.pdf files.

Ten individuals went on a low–fat diet for 12 weeks to lower their cholesterol. The data are recorded in. Do you think that their cholesterol levels were significantly lowered?

$$\begin{array}{cc}\text{Starting cholesterol level}& \text{Ending cholesterol level}\\ \text{140}& \text{140}\\ \text{220}& \text{230}\\ \text{110}& \text{120}\\ \text{240}& \text{220}\\ \text{200}& \text{190}\\ \text{180}& \text{150}\\ \text{190}& \text{200}\\ \text{360}& \text{300}\\ \text{280}& \text{300}\\ \text{260}& \text{240}\end{array}$$

This exercise builds on another exercise in its source book, which isn't shown here.

OpenStax, Introductory Statistics 2e · §10.4 Matched or Paired Samples · Exercise 16